Error deleting Web site “/sites/TestEnvironment/YourSite". You can’t delete a site that has subsites

Issue :

• Site Actions -> Site Settings
• Site Administration: Delete this site
• Delete This Site: Delete button
• Are you sure you want to permanently delete this Web site and all it contents?: OK
• Error deleting Web site “/sites/TestEnvironment/YourSite”. You can’t delete a site that has subsites

Resolution :

Other than the poorly designed workflow that would let you get all the way to the end before displaying an error message, the message itself is incorrect. You can delete a site that has subsites. You just have to do it from a different interface.

• Site Actions -> Site Settings
• Site Administration: Content and Structure
• In the left column, move to the parent of the main site to be deleted
• In the right column, choose the site to be deleted (YourSite in our example)
  Menu: Actions -> Delete
• Deleting the selected sites will permanently delete all content and user information. All subsites in this site will also be permanently lost. Do you want to continue?: OK